[feladat @ 213] Modified the inserts in the pgsql db structure to make sure no duplicate key errors are shown when a new records is created. Also moved the Ueber_user permision item upfront, to make sure it is created with id 1 so the permission template can be created correctly. Added an additional query to check what the ID is of the ueber_user, as it set hardcoded to 53 in the query.

[feladat @ 212] Minor change to Dutch translation.

[feladat @ 211] Update of template translation file. Update of Dutch translation. Update and cleanup of some user interface text.

[feladat @ 210] Lots of minor updates to user interface text.